JP7443113B2 - hanging equipment - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to a hanging device for lifting articles.

BACKGROUND ART Hanging tools for lifting blocks and transferring them to other locations have been known (for example, Patent Document 1). The hanging device of Patent Document 1 has a pantograph mechanism. Further, in the hanger, by contracting the pantograph mechanism, the article clamping members on both sides are opened and the clamping of the article is released. On the other hand, by extending the pantograph mechanism, the article holding members on both sides close, the article is held, and the article is held by the hanger. The article held on the hanger is transported to a predetermined location by movement of the hanger.

Japanese Patent Application Publication No. 9-110363

By the way, the above-mentioned hanging device of Patent Document 1 uses an article holding member to clamp and hold an article from both sides. Therefore, there is a problem that the article cannot be lifted with only one side of the article holding member. The above-mentioned problem occurs, for example, when an engine cylinder head is transferred. Cylinder heads have various shapes, and if one side of the cylinder head has a complicated shape, there is a problem that the cylinder head cannot be held by the article holding member.

The inventors of the present invention conducted extensive studies and found that the above-mentioned cylinder head has an opening for an ignition coil, for example, on the upper surface side in the lifting direction. Based on this knowledge, the inventors have come to the conclusion that if the opening for the ignition coil is used, the cylinder head can be held and lifted.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lifting tool capable of lifting an article, which has an opening facing in the lifting direction and at least one side surface.

(1) The hanging tool of the present invention provided to solve the above-mentioned problems is for lifting an article having an opening opening in the lifting direction, and is movable in the lifting direction. an insertion section that is movable together with the support section in the lifting direction and that can be inserted into and removed from the opening in the lifting direction; a contact portion movable toward the article and capable of contacting the article from the side, and a link mechanism connecting the contact portion and the support portion so as to transmit power; The link mechanism is characterized in that, with the insertion portion inserted into the opening, the contact portion is moved in a direction approaching the side surface of the article or in a direction away from the side surface of the article. That is.

The hanging tool of the present invention includes an insertion portion that can be inserted into and removed from the opening when lifting an article that has an opening that opens in the lifting direction. Further, the insertion section is movable together with a support section that is movable in the lifting direction. With the above-described configuration, the insertion portion can be inserted into the opening to support an article. With this, the opening can be used to support the article, so even if the article has a contact surface on only one side, the article can be held and supported between the side of the article and the opening. be able to.

Further, in the hanging tool of the present invention, when the support section moves in the lifting direction with the insertion section inserted into the opening of the article, the link mechanism moves the abutting section in a direction closer to the side surface of the article. It is supposed to be moved. With the above-described configuration, when the article is lifted, the abutting section is pressed against the side surface of the article, so that the clamping force for the article is increased between the insertion section inserted into the opening and the abutting section. Therefore, it is possible to prevent the article from coming off the hanger and falling.

Further, in the hanging device of the present invention, when the support portion moves in a direction opposite to the lifting direction with the insertion portion inserted into the opening, the link mechanism separates the contact portion from the side surface of the article. It is supposed to be moved in the direction of With the above-mentioned configuration, for example, when an article is placed on the floor etc., the support section moves in the opposite direction to the lifting direction, and the abutting section is separated from the side of the article, so that the abutting section is acted on. The clamping force is released. Thereby, the article transported by the hanger can be easily removed at the transfer destination.

With the above-described configuration, when removing the article from the hanging tool, the abutting part can be moved away from the side of the article, and when lifting the article with the hanging tool, the contacting part can be moved away from the side of the article. can be done. As a result, it is possible to improve the ease with which articles can be attached to and removed from the hanger, so it can be expected that work efficiency will be improved.

(2) In the hanging tool of the present invention provided to solve the above-mentioned problems, the link mechanism has a first link having a fulcrum and a guide part and corresponds to the support part, and the contact part. and a second link rotatably supported on the fulcrum, a slider movable along the guide portion, and a third link rotatably connected to the second link and the slider. The contact portion and the support portion are configured by a four-bar slider link.

In the hanging device of the present invention described above, the link mechanism is a four-bar slider link, and the abutment portion and the support portion are constituted by the four-bar slider link. With the above-described configuration, when the article is lifted, the contact portion is pressed toward the contact surface of the article due to the article's own weight. Thereby, the clamping force between the insertion part and the contact part is increased, and it is possible to suppress the article from coming off the hanger and falling.

(3) The hanging device of the present invention provided to solve the above-mentioned problem is characterized in that the contact portion engages and abuts against a side surface of the article. .

According to this configuration, since the contact portion engages and abuts against the side surface of the article, it is possible to further suppress the article from coming off the hanger and falling. Here, it is preferable that the article has a flange, for example. If the article has a flange, the abutting portion can be engaged with the flange, and it is possible to effectively prevent the article from falling from the hanger.

(4) The hanger of the present invention provided to solve the above-mentioned problems is characterized in that the article is a cylinder head, and the opening is an ignition coil hole.

According to this configuration, since the ignition coil hole can be used to support the cylinder head, even a cylinder head that has a flange or contact surface on only one side surface can be lifted, for example. Therefore, a highly versatile hanging device can be provided.

According to the present invention, it is possible to provide a lifting tool capable of lifting an article that has an opening facing the lifting direction and at least one side surface.

FIG. 2 is a front view of the hanging tool of the present invention showing a state in which the article is released from being held. 2 is a rear view seen from the rear side of FIG. 1. FIG. FIG. 2 is a plan view taken along the line AA in FIG. 1; FIG. 2 is a front view of the hanging device of the present invention, showing a state in which an article is lifted.

A hanging tool 10 according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4.

FIG. 1 is a front view of a hanging tool 10 of the present invention, showing a state in which the holding of an article W is released. 2 is a rear view seen from the back side of FIG. 1, and FIG. 3 is a plan view taken along arrows AA in FIG. 1. In this embodiment, an example will be described in which an article W such as a cylinder head of an engine is lifted using the lifting tool 10 of the present invention.

As shown in FIGS. 1 to 3, the article W is placed on a mounting table 2 such as a pallet. The article W has an opening Wa formed in the lifting direction (in the drawing, upward) into which, for example, an ignition coil (not shown) is inserted. The opening Wa is, for example, a circular through hole so that a spark plug connected to an ignition coil can be inserted into the engine. Moreover, the article W has a flange Wb formed on one side surface Wc. In the hanging tool 10 of the present invention, the article W is lifted using the opening Wa and the flange Wb.

As shown in FIG. 1, in this embodiment, the hanging device 10 includes a link mechanism 20 whose basic structure is, for example, a four-bar slider link. The link mechanism 20 includes a first link 21 (also referred to as a support section 21) provided along the lifting direction (in the drawing, upward), a slider 25 movable along the first link 21, and the first link 21. It has a second link 40 rotatably supported in intersecting directions, a third link 50 rotatably supported by the second link 40, and the like.

The first link 21 is composed of a plate-like member provided so as to extend along the lifting direction (vertical direction in the drawing). The first link 21 can be moved in the lifting direction by lifting a connecting tool 26, which will be described later, using a hook of a crane or the like. The first link 21 includes a guide portion 23 formed closer to the lifting side (closer to the upper end side), a fulcrum 22 provided near the center in the lifting direction, and an insertion portion 35 provided on the lower end side. There is.

A long hole 23 (also referred to as a guide portion 23) is formed above the fulcrum 22 near the lifting side of the first link 21. The elongated hole 23 is formed so that the direction in which the first link 21 is lifted is longitudinal. A slider 25, which will be described later, is attached to the elongated hole 23 so as to be movable along the elongated hole 23.

The fulcrum 22 is constituted by a rotating shaft provided near the middle of the first link 21 in the vertical direction. The fulcrum 22 rotatably supports a second link 40, which will be described later.

A support plate 33 is provided on the lower end side of the first link 21 so as to extend along the side surface Wc of the article W. Three insertion pins constituting an insertion portion 35 are formed along the support plate 33 on the lower surface side of the support plate 33 . The insertion portion 35 can be inserted into the opening Wa of the article W. Here, the insertion portion 35 is cylindrical and has a diameter slightly smaller than the diameter of the opening Wa. Therefore, the article W is held removably by being held between the contact part 60, which will be described later, and the insertion part 35 inserted into the opening Wa. Specifically, by holding the insertion portion 35 inserted into the opening Wa, a frictional force is generated between the outer peripheral surface of the insertion portion 35 and the inner peripheral surface of the opening Wa, and this frictional force causes the article W to be held. is retained. Further, when a plurality of insertion portions 35 are provided as described above, rotation of the article W can be suppressed. Thereby, the position of the hanger 10 with respect to the article W can be determined.

The second link 40 is provided so as to extend in a direction intersecting the first link 21. The second link 40 is rotatably supported near the middle by the fulcrum 22. The second link 40 is arranged in an inclined state, and a third link 50 is rotatably connected to the upper end of the inclination via a connecting shaft 70. Further, a contact portion 60 is provided on the inclined lower end side of the second link 40 so as to hang down. Further, the second link 40 has a plurality of punch holes formed therein. Thereby, the weight of the second link 40 is reduced. In addition, you may make it use the said hole to change the connection position with the 3rd link 50 mentioned later. Thereby, the stroke of the link mechanism 20 can be changed.

The contact portion 60 is formed in an L-shape so that its tip can come into contact with the side surface Wc of the article W. The contact portion 60 is fixed to a support frame 61 provided on the inclined lower end side of the second link 40 . Furthermore, the contact portion 60 is arranged so as to be spaced apart from the article W when it is not holding the article W. As shown in FIG. 3, the support frame 61 is formed to extend along the side surface Wc of the article W, and the contact portions 60 are provided at both ends of the support frame 61, respectively. Therefore, the contact portion 60 contacts the side surface Wc of the article W at two locations.

The third link 50 is provided so as to extend in a direction intersecting the first link 21. The third link 50 is connected at one end to the second link 40 via the connection shaft 70, and can rotate around the connection shaft 70. Further, the third link 50 is arranged to be inclined in the opposite direction to the second link. The third link 50 intersects the first link 21 at an intermediate portion, and the intersecting portion is rotatably supported by a guide pin 27 of a slider 25, which will be described later. Similar to the second link 40, the third link 50 has a plurality of punch holes formed therein. Thereby, the weight of the third link 50 is reduced. Note that the connection position with the second link 40 may be changed using the hole. Thereby, the stroke of the link mechanism 20 can be changed.

The slider 25 is a rectangular plate and is provided on the upper end side of the first link 21 . The slider 25 has a guide pin 27. The guide pin 27 is provided so as to pass through the slider 25. The guide pin 27 has one end inserted into the elongated hole 23. Furthermore, a stopper pin 28 is provided on the slider 25 so as to be located below the guide pin 27 . One end of the stopper pin 28 is inserted into the elongated hole 23. These allow the slider 25 to move along the long hole 23.

Further, the stopper pin 28 can engage with the elongated hole 23 to maintain the slider 25 at a predetermined height when the slider 25 is located at the lower end side. This prevents the distance between the second link 40 and the third link 50 from being less than or equal to a predetermined distance.

As shown in FIG. 2, the guide pin 27 rotatably supports the third link 50 on the back side of the slider 25. As shown in FIG. Therefore, the third link 50 can move together with the slider 25 in the lifting direction (vertical direction in the drawing). Further, the guide pin 27 and the fulcrum 22 are connected via an elastic member 71 made of, for example, a spring. The elastic member 71 biases the guide pin 27 so as to draw it toward the fulcrum 22 . In other words, the second link 40 and the third link 50 are urged toward each other by the elastic member 71. Therefore, the contact portion 60 is maintained in a state where it opens outward and is separated from the flange Wb and the side surface Wc.

Further, the slider 25 is provided with a coupling tool 26 (also referred to as a shackle 26) on the upper end side for engaging a hook (not shown) of a crane (not shown) or the like. The connector 26 is rotatably supported by the slider 25.

As shown in FIGS. 1 and 2, the second link 40 described above is provided with a handle 72. The handle 72 is fixed to a support frame 40a provided upward between the fulcrum 22 and the support frame 61. Moreover, the handle 72 is arranged so as to be parallel to the third link 50 in a state where the contact portion 60 does not hold the article W.

Further, a handle 73 is provided along the third link 50 at one end side of the third link 50 described above. Therefore, by grasping the handles 72 and 73, the handles 72 and 73 approach each other in the direction of the arrow shown in the figure while being assisted by the biasing force of the elastic member 71. Thereby, the handle 72 and the handle 73 can be gripped with a weak force, and the second link 40 and the third link 50 can be brought close to each other. Furthermore, the contact portion 60 pivots in a direction away from the side surface Wc of the article W.

Next, the operation of the hanging tool 10 of the present invention will be explained below with reference to FIGS. 1, 2, and 4.

First, as shown in FIGS. 1 and 2, an article W to be lifted is placed on the mounting table 2. Subsequently, the hanging tool 10 is transported onto the article W by a crane or the like. At this time, the position of the hanger 10 is adjusted so that the insertion part 35 faces the opening Wa of the article W. Furthermore, by gripping the handles 72 and 73, the distance between the second link 40 and the third link 50 is narrowed. As a result, the contact portion 60 opens outward and does not come into contact with the article W.

In the above state, the suspender 10 is moved in a direction opposite to the lifting direction (downward in the figure), and the insertion portion 35 is inserted into the opening Wa. At this time, in this embodiment, since the insertion portions 35 are provided at three locations, the contact portions 60 are positioned along the side surface Wc of the article W.

Next, by releasing the handle 72 and the handle 73, the handle 72 and the handle 73 are separated, and the second link 40 and the third link 50 are also separated, as shown in FIG. Thereby, the contact portion 60 contacts the side surface Wc of the article W. In this state, the hanging tool 10 is lifted. When the article W is separated from the mounting table 2, the first link 21 and the slider 25 are separated from each other due to the weight of the article W. Thereby, the contact portion 60 presses the side surface Wc of the article W. Therefore, the article W can be firmly held by the insertion portion 35 and the contact portion 60, and the article W can be prevented from falling during lifting.

Moreover, when the flange Wb is provided on the side surface Wc of the article W as in this embodiment, it is preferable that the contact portion 60 be able to engage with the flange Wb. By having the above-mentioned configuration, it is possible to further suppress the article W from falling when the article W is lifted. Furthermore, an engagement groove may be formed instead of the flange Wb. Note that the article W may not have the flange Wb. When the article W does not have a flange Wb, it is preferable to attach a member such as rubber to increase the frictional force of the contact part 60, or to form irregularities on the contact part 60.

After the article W is lifted by the lifting device 10 as described above, the article W is transferred to a location where the next work process, such as engine assembly, will be performed, for example. The above is an embodiment of the hanging device 10 of the present invention, but the present invention is not limited to the above-described embodiment, and appropriate changes can be made within the scope of the invention.

In this embodiment, the article W is a cylinder head of an engine and the opening Wa is an ignition coil hole, but the present invention is not limited thereto and can be applied to various articles. Further, the opening Wa may be not only a through hole but also a hole or a recess having various depths.

In this embodiment, the opening Wa is circular, but the shape of the opening Wa is not limited to a circular shape, and various shapes such as an ellipse and a polygon can be adopted. In the case described above, the shape of the insertion portion 35 may also be changed in accordance with the shape of the opening Wa. Furthermore, the opening Wa may have various sizes as long as the insertion portion 35 can be inserted therein. Here, the size of the outer periphery of the insertion portion 35 is preferably such that it can be inserted into the opening Wa without any gap, and the insertion portion 35 can be removed. Thereby, when lifting the article W, the article W can be held by the insertion portion 35, and the article W can be easily removed after being transferred.

In this embodiment, a plurality of insertion portions 35 are provided, but a single insertion portion 35 may be provided, and an appropriate number of insertion portions 35 may be provided according to the opening Wa of the article W. can. In the case described above, the shapes and sizes of the plurality of insertion portions 35 may be different from each other. Further, for example, the insertion portions 35 having a plurality of shapes may be prepared and may be exchangeable depending on the shape of the opening Wa. Thereby, the versatility of the hanging tool 10 can be increased.

In this embodiment, the link mechanism 20 is a four-bar slider link, but the present invention is not limited to this, and various link mechanisms can be employed. Further, the shapes and sizes of the first link 21 (supporting portion 21), the second link 40, the third link 50, the slider 25, etc. can be changed as appropriate. Further, the arrangement of the fulcrum 22 and the guide portion 23 provided on the first link 21 can be changed as appropriate depending on the size and shape of the article W to be lifted.

In the present embodiment, the contact portion 60 is exemplified as one that engages and contacts the side surface Wc of the article W, but is not limited to this, and may simply contact the side surface Wc. Also good. The contact portion 60 can have various shapes depending on the shape of the side surface Wc of the article W. Further, for example, a plurality of contact parts 60 having different shapes may be prepared and replaced depending on the article W. Further, for example, the contact portion 60 may be configured to be movable along the side surface Wc of the article W. Thereby, the versatility of the hanger 10 can be increased when changing the type of article W.

It should be noted that the present invention is not limited to the embodiments and modifications described above, and those skilled in the art will recognize that other embodiments may be made based on the teaching and spirit of the invention without departing from the scope of the claims. It's easy to understand.

The hanging tool of the present invention can be used when lifting an article having an opening in the lifting direction. Furthermore, the hanging tool of the present invention can be suitably used for transferring various automobile parts such as engine cylinder heads.

W: Article Wa: Opening Wb: Flange Wc: Side 10: Hanging tool 20: Link mechanism 21: First link (support part)
22: Fulcrum 23: Long hole (guide part)
25: Slider 35: Insertion section 40: Second link 60: Contact section

Claims (2)

A lifting device for lifting an article having an opening facing in the lifting direction,
a support part movable in the lifting direction;
an insertion part that is movable together with the support part in the lifting direction and that can be inserted into and removed from the opening in the lifting direction;
an abutment part that is movable in the lifting direction together with the support part and that can abut the article from a side surface;
a link mechanism that connects the contact part and the support part in a power transmittable manner,
The link mechanism is
With the insertion portion inserted into the opening, the contact portion is moved in a direction approaching the side surface of the article or in a direction away from the side surface of the article,
a first link having a fulcrum and a guide portion and corresponding to the support portion;
a second link having the contact portion and rotatably supported by the fulcrum;
a slider movable along the guide section;
a third link rotatably connected to the second link and the slider,
The contact portion and the support portion are constituted by a four-bar slider link,
The insertion portion includes one disposed approximately on the same axis as the slider,
By inserting the insertion portion into the opening of the article and moving the article in the lifting direction with the contact portion in contact with the side surface of the article, the weight of the article causes the A hanger characterized in that the insertion portion and the slider are spaced apart from each other, the contact portion presses a side surface of the article, and the insertion portion and the contact portion hold the article . The insertion portion is cylindrical and has a diameter smaller than the diameter of the opening,
The contact portion is provided only on one side of the article,
When the insertion portion is inserted into the opening, the article is held between the contact portion and the insertion portion inserted into the opening, so that the outer circumferential surface of the insertion portion and the inside of the opening are The hanger according to claim 1 , wherein the article is held by a frictional force generated between the hanger and the peripheral surface .

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